Monday, November 3, 2014

Case of the Week 324

The following large structures were seen on a stool wet mount preparation, measuring from 50 to 80 micrometers in largest dimension. The patient has a history of chronic intermittent diarrhea that is occasionally bloody and abdominal pain.  Identification?





9 comments:

  1. must be B.coli, it's the only ciliate known to infect humans. It's very rare though so I haven't seen it in ciliated form since my Masters degree, though I've seen many cysts in ruminants and pigs since then

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  2. Balantidium coli! Nice...Lee

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  3. Yep, it is ciliated. What is Balantidium coli? ...W

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  4. Very nice photographs of B. coli. Even the cilia are plainly visible, the nucleus and the cytostome are also visible.

    Florida Fan

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  5. Ah yes, the flagellate with "boring" motility!

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  6. Balantidium coli trophozoites stage and cyst stage on last photo.
    Ciliated cell wall noted.

    Wan Hafiz

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